CPUC/LIOB WATER/ENERGY CONSERVATION PANEL DISCUSSION Panel 1

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CPUC/LIOB WATER/ENERGYCONSERVATION PANEL
DISCUSSIONPanel 1 Current Water and Energy
Conservation ProgramsCalifornia American
WaterPresented by David Stephenson Manager
Rate Regulation

• January 17, 2007

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California American WaterBackground

• Seven CPUC regulated water districts, One
  regulated wastewater district.
• Twenty-four separate and distinct service areas
  within the seven regulated districts.
• Service provided in metropolitan, urban and rural
  areas.
• Approximately 170,000 customers served.

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Current Water Conservation Programs In All
Service Areas

• Metering and Meter Replacement Programs.
• System Pressure Control.
• Supply Side Management.
• Plumbing Fixture Retrofit Programs.
• Commercial and Multi-Family Water Audits.
• Large Turf Irrigation Audits.
• Demonstration Gardens.
• School Programs.
• Public Education Programs.
• Ultra-Low Flow Toilet Rebates.
• High Efficiency Washing Machine Rebates.

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Conservation Programs Used In Specific Areas

• Inclining Block Rate Design (In use in Monterey
  Settled in Los Angeles Proposed in Coronado,
  Sacramento, Larkfield and Village).
• Conservation Discount Rate Design (In use in
  Felton).
• Complete in-home retrofit program (Chualar Area).
• Joint Company/Community Committees
  (Monterey/Larkfield).
• Strict Water Use Regulations (Monterey).
• Full-Scale SCADA Controlled facilities (Los
  Angeles, Monterey).
• In-Lieu water Purchasing Programs (Los Angeles,
  Sacramento).

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Current Energy Conservation Programs That
Indirectly Provide Water Conservation

• SCADA controls water pressure, supply and time
  of use.
• Pump and Motor Replacement Programs variable
  speed drives supply only in the quantities and
  pressures necessary.

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Current Water Conservation Programs That
Indirectly Provide Energy Conservation

• Direct Correlation - High Efficiency Washing
  Machine Rebates
• Indirect Correlation
• Ultra-low flow toilet rebates
• Plumbing fixture retrofits
• In fact - all water conservation reduces energy
  consumption

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Program Coordination

• California Urban Water Conservation Counsel
• Monterey Peninsula Water Management District
• Callegues Municipal Water District
• Los Angeles Department of Water and Power
• West Basin Municipal Water District
• Metropolitan Water District
• Upper San Gabriel Valley Municipal Water District
  
• Sacramento Groundwater Authority
• Sacramento Groundwater Basin and the Central
  Sacramento Groundwater Forum
• Sonoma County Water Authority
• Larkfield/Wikiup Water District Advisory
  Committee
• San Diego County Water Authority

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Efforts To Determine Program Effectiveness

• The effort in this area is lagging behind efforts
  in other areas
• Metering and customer use comparisons
• In Monterey studies have been conducted by
  MPWMD

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Funding For Programs

• Rates
• Stockholder Contributions
• Municipal provider payments